Alex Katsopolis is a recurring character in Fuller House. He is portrayed by Dylan Tuomy-Wilhoit.  


Our Very First Show, Again

Alex has been attending College in San Francisco with his brother Nicky, for the past 6 years. They plan to graduate, move to LA and open a Fish Taco Truck together. But until they 'hit it big' they are going to move back in with their parents, who are not too pleased with that idea.

Fuller Thanksgiving

Alex attends Thanksgiving at The Tanner House with his family. He brings fish tacos from his Fish Taco Truck that he co-owns with his twin brother Nicky (that their dad paid for) in Los Angeles. No one eats the tacos because the fridge in the Fish Taco Truck is broken.

While D.J. and Matt prepare Thanksgiving dinner, Alex, Jesse, Danny, Joey, Stephanie, Becky, Kimmy, Jackson, Ramona, Max, Tommy Jr., Fernando, Nicky, Jimmy, Ginger, Phyllis, Jerry, Joan, Lewis and Cosmo are out playing football. 

Alex and Nicky sit at the children's table for Thanksgiving dinner. Alex kicks Nicky under the table.


  • Alex Katsopolis was originally portrayed by Kevin Renteria.
  • Donaldson comes from his mothers maiden name which Becky kept and all 3 of her children also have included in their names.


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